Screwdriver with movable adapter

Abstract

A bottle opener with a movable extension rod comprises a grab handle, an inner pipe, the extension rod, an operation assembly, a first elastic piece, a covering ring and a second elastic piece. The grab handle is provided with a containing groove, the inner pipe is arranged in the containing groove and provided with at least one interference hole, a back section of the extension rod is movably arranged in the inner pipe, a front section of the extension rod is provided with at least one interference groove which corresponds to the at least one interference hole, and a protruding clamping and stopping piece and an assembly groove are arranged on the back section of the extension rod. The operation assembly is formed by an operation piece, a movement piece and at least one interference piece, the operation piece is arranged at the front end of the grab handle for rotation operation, and the movement piece is provided with a suppressing wall for suppressing the at least one interference piece. The covering ring is provided with a shaft hole and a retaining face forming along the periphery of the shaft hole, and the retaining face is used for retaining and stopping the clamping and stopping piece. Therefore, the operation piece can be operated by using a rotation mode, and the extension rod can be effectively prevented from flying off the grab handle.

Description

technical field [0001] The invention relates to hand tools, in particular to a screwdriver with a movable post. Background technique [0002] U.S. Patent No. 7,287,449 discloses a screwdriver with a removable rod (ScrewdriverWithRemovableRod). In this case, a group of positioning beads (latchingballs) (fig. A group of blocking balls (blocking balls) (figure number 14), this group of positioning beads is used to connect with the positioning grooves of the front section and the rear section of the post to keep the post in the retracted position and the extended position; and the group of blocking balls Then, it is used to interfere with the assembly groove of the rear section of the connecting rod, so as to further ensure that the connecting rod is in the extended position without ejecting the handle. In addition, the operation tube (figure number 7) of this case is to control the pop-up of the connecting rod by pressing inward. This operation method is inconvenient. The ope...

AI Technical Summary

Problems solved by technology

Although this case improves the shortcomings of the aforementioned US7,287,449 patent, because it only uses one set of positioning parts, when the user operates the control part to release the set of positioning parts and pop up the connecting rod, sometimes the connecting rod will The speed of ejection is too fast to allow the group of positioning parts to return to the state of pressing the positioning parts. At this time, the positioning parts cannot effectively interfere with the restricting part of the rear section of the connecting rod, and the connecting rod will fly out of the grip without hindrance. handle

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